997477416 has 80 divisors (see below), whose sum is σ = 3008798100. Its totient is φ = 306913536.

The previous prime is 997477387. The next prime is 997477471. The reversal of 997477416 is 614774799.

997477416 is a `hidden beast` number, since 99 + 74 + 77 + 416 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 995654916 + 1822500 = 31554^2 + 1350^2 .

It is a super-2 number, since 2×997477416² = 1989922390860074112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50781 + ... + 67628.

Almost surely, 2^997477416 is an apocalyptic number.

It is an amenable number.

997477416 is an abundant number, since it is smaller than the sum of its proper divisors (2011320684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997477416 is a wasteful number, since it uses less digits than its factorization.

997477416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118440 (or 118427 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 997477416 is about 31582.8658610963. The cubic root of 997477416 is about 999.1584306263.

The spelling of 997477416 in words is "nine hundred ninety-seven million, four hundred seventy-seven thousand, four hundred sixteen".